Gyrocompasses
United States Patent 3419967
US Patent References:
/1180815.html
- - 1180815

Gyroscopic apparatus
- - 1589039

Gyroscopic compass
- - 3001290

Flotation type compass
- - 3068583

/3162951.html
- - 3162951


Inventors:
Rocks, Eugene S.
Smith, Harry J.
Publication Date:
01/07/1969
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Assignee:
SPERRY RAND CORP
Primary Class:
33/327
Other Classes:
33/275G
International Classes:
G01C19/38; G01C19/00
US Patent References:
3174346Gyroscopic instrument
3273404
Foreign References:
DE1143036B




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